Dell Emulex Family of Adapters - Manual (Page 616)

Emulex Drivers for Windows User Manual P010077-01A Rev. A
3. Configuration
NIC Driver Configuration
616
To modify a parameter without a driver reload, use “-r”. This is useful to modify
several parameters in sequence, then force a reload of the driver at the end. To force a
driver reload use the “-f” parameter.
The following is an example of such a sequence:
occfg -a emulex -r -s rss=0
occfg -a emulex -r -s "interrupt moderation=0"
occfg -a emulex -f
Registry keys may be set to two special values:

The “delete” value will cause the key to be entirely deleted and the driver will
use the default value. This is appropriate for keys that are optional, such as the
“Network Address”.

The “default” value will set the key to the driver’s default value. If the key is
optional, the default value may be equivalent to deleting the key.
For example:
occfg -a emulex -s vlan=delete
occfg -a emulex -s rss=default
Viewing Device Parameters
The occfg.exe program can query device parameters from either the registry or the
device driver (if running driver version >= 2.103.x.x).
The registry and driver values may differ until the driver is reloaded. If the driver
reload fails for any reason (such as another application has an open handle to the
device driver), it may be necessary to reboot the system to apply the registry changes.
Note: If the driver has been disabled or if the driver failed to load due to any error, the
driver query will return the error, “Failed to query driver for the parameter”.
The following are batch mode examples:
occfg -a emulex -g "Interrupt Moderation"
occfg -a "(Local Area Connection)" -g interrupt,rss
Emulex OneConnect OCe11102-I, NIC/TOE (Local Area Connection):
[Registry] Interrupt Moderation = 4 (Adaptive [Default])
[Driver] Interrupt Moderation = 4 (Adaptive [Default])
Emulex OneConnect OCe11102-I, NIC/TOE (Local Area Connection):
[Registry] RSS = 0 (Disable)
[Driver] RSS = 0 (Disable)
Resetting All Parameters
Resetting all parameters will restore the default values for each adapter. This is
accomplished by using the command:
occfg -a emulex -x